Received: from localhost (maia-2.hub.org [200.46.204.187]) by postgresql.org (Postfix) with ESMTP id 231649FB5F0 for ; Tue, 13 Mar 2007 18:30:46 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.187]) (amavisd-new, port 10024) with ESMTP id 99212-02 for ; Tue, 13 Mar 2007 18:30:39 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.4 Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by postgresql.org (Postfix) with ESMTP id A8AA79FB399 for ; Tue, 13 Mar 2007 18:30:42 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.13.6/8.13.6) with ESMTP id l2DLUeW5009443; Tue, 13 Mar 2007 17:30:40 -0400 (EDT) To: Sumeet cc: pgsql-sql@postgresql.org Subject: Re: postgres configuration In-reply-to: <7539aebb0703131014y2512853fw9ced1bd3bb5f5e77@mail.gmail.com> References: <7539aebb0703131014y2512853fw9ced1bd3bb5f5e77@mail.gmail.com> Comments: In-reply-to Sumeet message dated "Tue, 13 Mar 2007 13:14:03 -0400" Date: Tue, 13 Mar 2007 17:30:40 -0400 Message-ID: <9442.1173821440@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200703/181 X-Sequence-Number: 27819 Sumeet writes: > My Vacuum's are running very very slow and expecially when vacuuming indexes > in large tables of size in 5-10 gigabytes, > can some one help me determine the parameters for postgres.conf which will > help me vacuum fast. I'm running postgres on a server with 32 gigs of ram > and 8 processors. What postgres version? 8.2 should be considerably faster than prior releases due to Heikki's fixes to let indexes be scanned in physical order during VACUUM. regards, tom lane